Question:

I have an appointment at my dental surgeon to have implants done on the first day of the nine days. Can I keep that appointment or should I change the appointment for after the nine day

Answer:

If the procedure involves any danger, if possible it is preferable to postpone it until after the three weeks are over, .

Best wishes

Sources:

Emes L’yackov 551- ftnt. 515, Kovetz Halachos 7-4

Rabbonim of the Beis Hora'a